StormGeo partners with DNV to offer anti-roll assistance and seaworthiness services

Synchronous and parametric rolling can occur suddenly and cause dangerous ship movements and, in the worst cases, loss of containers. With StormGeo’s Excessive Rolling Alerts and DNV’s Anti-Roll Assist app, captains can identify potential roll risks in time and take action to eliminate container loss threats.

Unlike ship movements such as pitch, roll and heave, which most captains can accurately estimate, synchronous and parametric rolling events can surprise even the most experienced captain. They are often difficult to predict, and when they do occur, they are notoriously difficult to control.

To help captains mitigate the risks of resonant rolling and container losses, StormGeo recently partnered with DNV to provide anti-roll assistance and seaworthiness information to crews on vessels already in the voyage planning stage. Through close collaboration, StormGeo recently implemented DNV’s Anti-Roll Assist application in its digital onboard platform, s-Planner

DNVs Anti-Roll Assist Application enables captains to recognize and avoid synchronous or parametric role risks before they become a threat. The app provides accurate, reliable and current visualized guidance and can be used both on board and ashore. It paints a clear picture of the risk situation and guides captains in actions to prevent excessive rolling container loss.

By integrating DNV’s application with s-Planner, StormGeo can now deliver excessive rolling alerts directly to captains through an advanced, on-board digital tool. A welcome addition to s-Planner’s many features, the excessive roll alerts efficiently inform the captain of potential roll hazards and help take appropriate action to mitigate any threats to the ship, crew and cargo.

“We are excited to partner with DNV to provide marine services and anti-roll assistance to shipping companies around the world,” said Dennis Thielsen, Vice President Planning and Navigation at StormGeo. “Helping to increase ship safety and prevent cargo loss will not only improve shipping operations, but also prevent harm to our ocean animals.”

The latest addition to s-Planner allows captains to enter speed and loading conditions, such as draft and GM, and get “lashing load” predictions for all positions and times along the planned route from forecasted weather data. The “lashing load” is the lateral acceleration that acts on the load.

Captains can easily visualize the forecasts directly on the route using a traffic light scheme based on rolling hazards for the route (yellow for dangerous parts of the route and red for parts to be avoided altogether).

Furthermore, in the WP Table of the application, the captain can see the traffic light for each waypoint on the route.

Finally, a Polar chart visualizes the load on the lashing system, allowing the captain to scroll through the route to see predictions for each waypoint. The vessel’s position and heading are also displayed on the chart, allowing the captain to easily analyze the situation and take precautions, such as changing course or speed or adjusting the planned route to avoid dangerous areas. The maximum achievable speed can also be displayed at the top of the polar chart to indicate the limitation of increased speed changes.

In addition to the Excessive Rolling Alerts, s-Planner provides weather insights, route optimization, digital map sequencing, multiple data layers and navigational alerts on board and onshore teams.

Read more about s-Planner here

About StormGeo

StormGeo is a global provider of weather information and decision support services, with industry-leading solutions for marine, oil and gas, renewable energy, onshore industry and aerospace. More than 12,000 vessels provide decarbonization solutions and rely on StormGeo software or services for navigation planning, route optimization, weather routing and fleet performance. The company has 24 offices in 16 countries, including eight 24/7/365 global operations centers. As a participant in the UN Global Compact for Sustainable Ocean Business, StormGeo’s passion for the weather and protecting natural resources motivates us to support our customers in making informed, environmentally responsible business decisions. StormGeo is part of Alfa Laval. For more information visit

Leave a Comment

Your email address will not be published. Required fields are marked *